Saddle tilt!

[mybike]

I recently repaired my son's, now abandoned by him, Tesco special mountain bike which caused my wife to go out and by a Raleigh Caprice. So we pedal along the canal towpath near our home having great fun. However my wife's saddle seems incurable of the fault of tilting backwards/nose up after a short period of cycling. I've tightened it to the point that I broke a 17mm 1/4" socket. Any ideas, the bike still hasn't had it's first service.

 

[ayceejay]

New saddle.

 

[screenman]

Sounds like something is wrong if you are tightening the correct part, a picture would be nice.

Sounds like a back to the shop though if you are struggling.

 

[screenman]

Does that clamp have a nut either side? I know what the bike looks like but not the saddle clamp.

 

[Gravity Aided]

Perhaps the saddlle hardware is too large or too worn for the seat post, or the components are worn. @screenman is correct, difficult to diagnose this one without pictures.

 

[screenman]

Perhaps the saddlle hardware is too large or too worn for the seat post, or the components are worn. @screenman is correct, difficult to diagnose this one without pictures.

I did think about worn, but it is a new bike. Mind you if it came from you know who!!!

 

[Gravity Aided]

I'm used to thinking of a Capri and Caprice as older models.
Like on this fellows blog, also showing saddle attachment hardware.
https://rustybikebell.wordpress.com/tag/old-loop-frame-bicycle/
Great blog, btw.

 

[mybike]

OK, thanks for the many replies. Firstly, I can't post any pictures yet I see!!!!! (heh but I can change my Avatar)

So a description, the bike is a fairly upright style in a rather old fashioned form. http://www.raleigh.co.uk/ProductType/ProductRange/Product/Default.aspx?pc=1&pg=9145&pt=266

The saddle uses the old type of clamp which has serrated brackets clamped with a square section bar, threaded at each end. (see the saddle picture in Gravity Aided's post above) Slackening the nut allows swivel, up & down movement, and a sliding movement nose to tail. Both nuts are extremely tight

It is a brand new bike so the problem isn't wear.

And it came from a LBS, not you know who.

Martin

 

[Pat "5mph"]

I did think about worn, but it is a new bike. Mind you if it came from you know who!!!

I think I know what this is
One or both of the two round metal clamps (the ones before the nut) are the wrong way round.
The engraved, grippy side, should face away from the nut.
If you look carefully at @Gravity Aided's picture you can see this.
Here is a step by step video.

 

[shouldbeinbed]

Not sure I agree @Pat "5mph" the knurled bits look right to me gripping onto the post part.

I wonder if the squared through bolt is twisted around, misaligned and not allowing the whole assembly to tighten up fully

 

[Pat "5mph"]

Not sure I agree @Pat "5mph" the knurled bits look right to me gripping onto the post part.

I wonder if the squared through bolt is twisted around, misaligned and not allowing the whole assembly to tighten up fully

I don't think the picture is the OP's bike, he can't post pictures yet.
Gravity Aided posted a stock picture for illustration - I think

 

[Gravity Aided]

It was from some fellow in Australia's blog. He's quite good. Calls himself petermc.
https://rustybikebell.wordpress.com/tag/old-loop-frame-bicycle/

 

[mybike]

Pat

The 'grippy side' is facing away from the nut, also clamps to the rail so it can only go one way round.

Martin

 

[shouldbeinbed]

I don't think the picture is the OP's bike, he can't post pictures yet.
Gravity Aided posted a stock picture for illustration - I think

Ah, I thought he'd put the offending saddle clamp as his avatar pic

 

[mybike]

SBIB

Quite right, I did. The squared off bit seems to be in the right position. I'm beginning to think there is something wrong with the clamp.